But rather than its promise of “separating reality from rhetoric in the emotionally-charged debate that swirls around the subject of carbon dioxide and global change”, on the contrary CO2 Science twists the most recent science, ever so subtly, to suggest that there is no link between carbon dioxide levels and climate change.

I think she is rather understating it. My experience is that the usual twist angle at CO2 Science is 180 degrees.

The first thing we learn is that Marohasy is not an intellectually honest player in the climate change debate. This is clear from the fact that she is intelligent enough to know this is total bunk yet she lends it her reasonably large soapbox. It is not the first crackpottery she has allowed to be trumpeted from her site. … But I think for me the most damning evidence of all is in the fact that she promotes, and even espouses herself, arguments that she has openly admitted are not sound. I am speaking of the standard talking point that global warming stopped in 1998.

I don’t refute this nonsense by constructing a new argument each time which, point-by-point, shows why their claims are not supported by the evidence. This pointless, since the majority of non-greenhouse theorists (‘sceptics’) blithely ignore any such counterpoints and simply repeat the same arguments elsewhere. Instead I rebutt by hyperlinking to some of the wealth of explanatory material out there on the world wide web.

I was first alerted to the rubbish that is C02 science when they misused one of my papers to support one of their denialist arguments. They had (deliberately?)changed the emphasis of the paper. I thought about complaining but didn’t bother in the end. I wish I had now.

My reading of the Jennifer M affair is that she’s trying to cover herself after being found out…..she’s clearly ignorant of some pretty basic science.

One would think that the fact that our decades old theoretical understanding of greenhouse gases and greenhouse effects has been as well verified by empirical observation as one could have ever hoped for would put these sort of absurd side trips to bed. A long time ago.

It really is a remarkable argument when the Climate Faithful can claim that global warming did not stop in 1998.

The other remarkable thing is that models, which encompass the collective knowledge of the supposed scientific field of climate study, have a zero percent prediction rate yet are held up by the Faithful as being seemingly infallible.

The other remarkable thing is that models, which encompass the collective knowledge of the supposed scientific field of climate study, have a zero percent prediction rate yet are held up by the Faithful as being seemingly infallible.

What is a “zero percent prediction rate?”

Global climate models correctly predicted the magnitude and duration of the cooling from the eruption of Mount Pinatubo. They correctly predicted that the stratosphere would cool as the troposphere warmed, that night temperatures would rise faster than day temperatures, that the global mean temperature increase would be least at the equator and would increase toward the poles, etc., etc., etc. How does that add up to a “zero percent prediction rate?” What are you talking about?

First of all, this post and responses to this post come off as completely arrogant. Calm down and debate the issues.
Secondly, Barton –
Using a simple linear regression, using either sattelite record (UAH or RSS), it has cooled. I’m rather sure that it’s the same case with HadCRUT though possibly not with GISS.

You write, “They correctly predicted that the stratosphere would cool as the troposphere warmed, that night temperatures would rise faster than day temperatures, that the global mean temperature increase would be least at the equator and would increase toward the poles, etc., etc., etc. ”

The stratosphere cooled as ozone was depleted. It has since stopped cooling. The troposphere, according to sattelite records, warmed only from 1996-2001 (a step change of sorts). The stratosphere cooled while tropospheric temperatures held even from 1979-1995. Stratospheric temperatures stopped cooling as troposperic temperatures jumped round the turn of the century, and neither have risen since then.

The South Pole and the Southern Hemisphere haven’t warmed significantly, with some regions actually cooling.

And of course, models have consistently over-estimated observed warming trends. I know you’ll disagree, but I had to say it.

1) Please show how you managed to calculate a negative cooling trend from whatever dataset you picked. I’m interested to see how you’ve done so, given that other folks – tamino and BPL, for e.g. – show such analysis (a) indicates slight warming has occurred and more importantly (b) that 10 year trend analysis is statistically insignificant. There’s a reason why Climatology 101 defines the minimum time-series analysis period to be ~30 years.

2) Yes, you can explain such stratospheric cooling PARTLY to ozone depletion, but that’s only limited to the lower stratosphere. The only way to explain cooling from 20-300 km is increased CO2. cf. Laštovička et al. (Science, 2006)

3) What satellite data are you referring to for your claim for trop temp trends?

4) Yes, we all know that parts of Antarctic are cooling (and it was prognosticated by GCMs), and the heat uptake role of the Southern Ocean in lowering warming rates in SH. That’s old news. So why are you ignoring the warming in the NH?

The global warming absolutists would have us believe the Global warming is proven. What is not widely know is that GISS data is being manipulated and changed on an almost monthly basis to maintain the “illusion” of the warmest temperatures on record in the late 20th century. Withut this data manipulation the Global Climate Models show no effect to the existing levels of CO2 and have no ability to accurately predict future climate. Anyone with some intelligence can find and compare the rapidly changing GISS datasets on the internet themselves. The lack of solar sunspot activity will bring in a period of global cooling that is in no way predicted by the GCM’s and will hopefully shake people out of their global warming fervor.

Withut this data manipulation the Global Climate Models show no effect to the existing levels of CO2 and have no ability to accurately predict future climate.

So, um, if I read that right, changing the values of temperature readings has given models the ability to change the existing levels of CO2. Also, it allowed models to accurately predict future climate change, in spite the fact that they’re not really trying to do that.

Withut [sic] this data manipulation the Global Climate Models show no effect to the existing levels of CO2/blockquote>

Show us exactly what you mean. As pough notes, your post parses bizarrely, and appears to be indicating that without the ‘data manipulation’ conspiracy, temperature does not impact CO2 levels. Wow!

If somehow you meant the opposite, I would like the hard evidence demonstrating the extent of the extent of your conpiracy, and exactly how temperatures are not impacted by CO2 levels if your claimed manipulation is removed.

Can you provide these pieces of information? We’re all waiting in great anticipation!

You know, your Denialist buddies must be so impressed with your work, and I’m sure that you have the consensus of climate scientists quaking in their boots…

The global warming absolutists would have us believe the Global warming is proven. What is not widely know is that GISS data is being manipulated and changed on an almost monthly basis to maintain the “illusion” of the warmest temperatures on record in the late 20th century. Withut this data manipulation the Global Climate Models show no effect to the existing levels of CO2 and have no ability to accurately predict future climate.

Ed, you may want to cut-paste your found random denialist drivel into your own language first, then translate it with something other than Google Translator. The way you did it above makes you look like you live in a 12′ x 12′ shack, wrote your manifesto on the toilet paper, and then went to the local Internet café at 3.00 in the morning to peck out your missive (and afterwards used their sink as a shower). IOW: Commander Coocoo Bananas makes more sense.

Average global temperatures are now some 0.75 °C warmer than they were 100 years ago. Since the mid-1970s, the increase in temperature has averaged more than 0.15 °C per decade. This rate of change is very unusual in the context of past changes and much more rapid than the warming at the end of the last ice age. Sea-surface temperatures have warmed slightly less than the global average whilst temperatures over land have warmed at a faster rate of almost 0.3 °C per decade.

Over the last ten years, global temperatures have warmed more slowly than the long-term trend. But this does not mean that global warming has slowed down or even stopped. It is entirely consistent with our understanding of natural fluctuations of the climate within a trend of continued long-term warming.